Nursing bottle



March 10, 1953 c. N. LESTAKIS NURSING BOTTLE Filed March 25. 1949Patented Mar. 10, 1953 .UNITED STATES PATENT OFFICE i NURSING BOTTLEChristy .N. Lestakis, Portland,` O''eg'.

Application March 23, 1949, Serial No. 82,992

Claims. (CI: 215-113 My invention relates to nursingbottles and providesone that a baby may learn to drink from.

My nursing bottle is illustrated in the accompanying drawings in whichFig. l is a vertical section thru the' bottle, nipple, and nut; Fig. 2is a plan View of the bottle: Fig. 3 is a plan view of a modification ofthe bottle; Fig. 4 is a vertical section on the line 4--4 of Fig. 3;Fig. 5 is a vertical section on the 111185-5 of Fig. 3; Fig. 6 is aVertical section thru a plain edge fiared portion of a bottle; Fig. 7 isa vertical section showing a nipple constructed to slip over the fiaredportion of a bottle; and Fig. 8 is a Vertical section showing anotherversion of a nipple and fiared top bottle.

Thruout the drawings and the specication similar numerals refer tosimilar parts.

The numeral l indicates a glass bottle of slightly tapered cross-sectiondrawn in at the neck 2 to form an annular shoulder 3. The annular neck 2is enlarged at ZA above the shoulder 3 to provide space for the rubbernipple 4 and the annular plastic nut 5 which is provided with aninterior quarter thread S adapted to engage the exterior quarter thread'l formed on the interior of the enlarged neck portion 2A of the neck 2.The nut 5 is counterbored to form an interier shoulder 8 adapted to comeinto contact with the outer annular shoulder 9 formed on the exteriorsurface IOA of the nipple 4 so that the bottom I& of the nipple 4 may bebrought into contact with the top surface of the shoulder 3 of thebottle I to form a leakproof joint as the nut 5 is tightened. This tightjoint should be made before the bottom of the nut 5 comes into contactwith said shoulder 3. Above the enlarged neck portion 2A the neck isagain fiared out to approximately the diameter of the base Il of thebottle l. The annular fiared portion z may terminate as shown in Fig. 6,or it may terminate in a lip or bead as shown in Figs. 1 to 5. The bead!3 helps direct milk to the deepest portion of the annular fiaredportion l2 as the bottle l is tilted to drinking position and breaks theflow-over as the bottle is lowered from drinking position. Figs. 3, 4,and 5 show the top surface !ZA of the fiared portion 12 concavelyfol-med and slightly fiuted, six fiutes [4 being shown with the numeral15 indicating the ridge l5 of a flute. The fiutes |4 provide additionalhelp toward directing the milk to the mouth of the drinker. Fig. 5 is asection thru the ridge [5. It is to be noted that these ridges 15strengthen the overhanging fiared por- 2, tion I2. The annularfiaredportion [2 naturally forms an undercut' portion I S which providesthe necessary space for' the' baby's lower` lip regardless of what sideof the bottle he or she is drinking from.

Fig. ?indicates that a nipple 4 may be designed to hook over a widemouth bottle as well as over a small mouth bottle. In other words, anipple 4 may be designed to hook over the undercut portion IS of thefiared annular portion z..

Fig. 8 shows another modification of a nipple adapted for use With awide mouth bottle. In this instance, the interior'surface' IT of themilk'- holding portion l8 of the bottle converges only slightly to formthe restricted neck portion 2' and then fiares outwardly to form theenlarged or intermediate neck portion ZA' and incidently the annularshoulder 3'. The annular fiared portion !2 may terminate as previouslydescribed and shown or it may have other configuration without departingfrom the basic idea. The lower end |9 of the rubber nipple 4 is madecylindrical in form and of a diameter slightly larger than the diameterof the restricted neck 2' so that when it is shoved down into position,

as a cork, it will be compressed at the neck 2' and expanded below andabove said neck 2', thereby holding the nipple securely and tightly inplace. The nipple 4 is fiared above its lower cylindrical portion [9 tothe contour of the top surface |2A of the fiared portion l2 andterminates in an annular fiange 20 which rests upon the top of thebottle l when the nipple is in place and extends beyond the fiaredportion l2 about so that the perimeter of the fiared portion 12 is keptfrom coming into contact with a table for instance when the bottle I isresting on its side. When it is desired to put the nipple 4 on thebottle l the flange 20 is held between the thumb and foreflnger and seton the bottle the cylindrical portion 19 being guided and centered bythe converging annular portion !2. Pressure is then applied to the topsurface 20A of the annular fiange 20 and the nipple pressed into placewhere it is held by the shoulder 2' which indents the soft cylindricalportion !9. To remove the nipple opposite sides of the annular fiange 20are pressed together and incidently the cylindrical portion l9 whereuponthe nipple may be lifted from the bottle.

What I claim a-s new over the prior art in nursing battles is set forthin the appended claims.

I claim:

1. A nursing bottle comprising a bottle ormed with an interior shoulder,an interior thread, and an annular fiared neck portion, a nipple havingan exterior annular shoulder, and a nut formed with an interior annularshoulder adapted to engage the nipple shoulder and a thread adapted toengage the bottle thread to bring the bottom of the nipple tight againstthe bottle shoulder.

2. In a nursing bottle in combination with a nipple and a nut providedwith a thread and adapted to clamp the nipple to the bottle, a bottleformed with an intermediate neck portion to receive the nipple and nutwithin and provided with a thread to engage the nut thread, a smallerlower neck portion positioned to form an interior annular shoulderbetween said neck portions for the nipple to be clamped against and alarger upper neck portion flared outwardly.

3. In a nursing bottle in combination with a nipple and a nut providedwith a thread and adapted to clamp the nipple to the bottle, a bottleformed with an intermediate neck portion to receive the nipple and nutwithin and provided with a thread to engage the nut thread, a smallerlower neck portion positioned to form an interior annular shoulderbetween said neck portions for the nipple to be clamped against and alarger upper neck portion concavely flared outwardly.

4. In a nursing bottle in combination with a nipple and a nut providedwith a thread and adapted to clamp the nipple to the bottle, a bottleformed with an intermediate neck portion to receive the nipple and nutwithin and provided with a thread to engage the nut thread, a smallerlower neck portion positioned to form an interior annular shoulderbetween said neck portions for the nipple to be clamped against and alarger upper neck portion eonoavely flared outwardly and having its topsurface fluted.

5. In a nursing bottle in combination with a nipple and a nut providedwith a thread and adapted to clamp the nipple to the bottle, a bottleiormed with an intermediate neck portion to receive the nipple and nutwithin and provided with a thread to engage the nut thread, a smallerlower neck portion positioned to form an interier annular shoulderbetween said neck portions for the nipple to be clamped against and alarger upper neck portion fiared outwardly and terminating in a beadededge.

CHRISTY N. LESTAKIS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATE'NTS Number Name Date 982,'776 Decker Jan. 24, 19111,343,113 Clark June 8, 1920 1,418,268 Alvey June 6, 1922 1348309 MayMar. 13, 1923 2,387,573 Ganson Oct. 23, 1945 FOREIGN PATENTS NumberCountry Date 160343 Great Britain Mar. 24, 1921

